A very large and conspicuous clausiliid species was recently discovered in Vietnam. It belongs to the Phaedusinae, Megalophaedusini and is described as Oospira (Oospira) pyknosoma spec. nov.

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CC BY-NC 4.0 NL ("Naamsvermelding-NietCommercieel")

Nederlandse Malacologische Vereniging

E. Gittenberger, & J.J. Vermeulen. (2001). Oospira (O.) pyknosoma spec. nov. (Gastropoda, Pulmonata, Clausiliidae), an impressive clausiliid species from Vietnam. Basteria, 65(4/6), 123–129.